แผงรับและขยายสัญญาณ SHURE UA874WB Active Directional Antenna
แผงรับและขยายสัญญาณไมโครโฟนไร้สาย SHURE UA874WB Active Directional Antenna, Directs a Cardioid Pattern Toward Target, Four-Position Gain Selector Switch, Low-Noise Signal Amplifier, Makes Up for Coaxial Transmission Loss
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฿12,900.00
Description
SHURE UA874WB Active Directional Antenna
แผงรับและขยายสัญญาณไมโครโฟนไร้สาย SHURE UA874WB Active Directional Antenna, Directs a Cardioid Pattern Toward Target, Four-Position Gain Selector Switch, Low-Noise Signal Amplifier, Makes Up for Coaxial Transmission Loss
The Shure UA874 Active Directional Antenna uses a log periodic dipole array to offer enhanced reception when directed toward the desired coverage area. An integrated amplifier and four gain settings compensate for varying degrees of coaxial cable signal loss.
The UA874 can be mounted on a microphone stand, suspended from the ceiling or mounted to a wall using the integrated swivel adapter bracket.
Features:
- Compatible with all Shure wireless receivers and antenna distribution systems that provide 12 V DC bias
- Four-position gain selector switch
- Low-noise signal amplifier that compensates for transmission loss in coaxial cable
- Integrated threaded adapter that mounts easily to microphones stands
Specifications
| Connector Type | BNC (female) |
| Impedance | 50 ohms |
| Reception Pattern | 70° (3 dB beam width) |
| Overload Intercept Point | >30 dBm |
| Antenna Gain | 7.5 dBi (on axis) |
| Signal Gain | Switchable Active: +12 dB, +6 dB (±1 dB) Passive: 0 dB, -6 dB (±1 dB) |
| RF Overload LED Threshold | -5 dBm (RF overload LED does not operate for passive gain settings) |
| Power Requirements | 10 – 15 V DC bias from coaxial connection (75 mA) |
| Operating Temperature Range | 0 to 145°F (-18 to 63°C) |
| Storage Temperature Range | -20 to 165°F (-29 to 74°C) |
| Dimensions | 14.1 x 12.4 x 1.4″ (359 x 316 x 36 mm) |
| Weight | 11.2 oz (317 g) |
Downloads
ดาวน์โหลด User Guide SHURE UA874WB
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